Titanium oxide bonded Zeolite and Bentonite composites for adsorptive removal of phosphate

Italiya, Gopal; Ahmed, Habeeb; Subramanian, Sangeetha

doi:10.1016/j.enmm.2022.100649

Cited by 12 publications

(6 citation statements)

References 79 publications

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“…Accordingly, 84% of PO 4 3− was removed using a TiO 2 -bentonite composite. 49 Thus, pristine zeolite has low adsorption efficiency, while the modied one showed better efficiency. This performance variation could be due to the replacement of zeolitic monovalent ions like Na + with interacting divalent metal cations like Ca 2+ and Mg 2+ ions.…”

Section: Advancement In Adsorption For Nutrient Recoverymentioning

confidence: 99%

Polymer-based nanocomposite adsorbents for resource recovery from wastewater

Ahmed,

Mekonnen,

Mekonnen

2023

RSC Adv.

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Section: Advancement In Adsorption For Nutrient Recoverymentioning

confidence: 99%

Polymer-based nanocomposite adsorbents for resource recovery from wastewater

Ahmed,

Mekonnen,

Mekonnen

2023

RSC Adv.

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“…Italia et al prepared two composites of zeolite and bentonite separately bonded with titanium and was evaluated for the adsorption of phosphate. Titanium/zeolite and titanium/bentonite composites removed up to 83% and 84% of phosphate at 3 pH [108].…”

Section: Zeolite/metal Oxide Compositesmentioning

confidence: 99%

Comprehensive Review on Zeolite-Based Nanocomposites for Treatment of Effluents from Wastewater

et al. 2022

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All humans and animals need access to clean water in their daily lives. Unfortunately, we are facing water scarcity in several places around the world, and, intentionally or unintentionally, we are contaminating the water in a number of ways. The rise in population, globalization, and industrialization has simultaneously given rise to the generation of wastewater. The pollutants in wastewater, such as organic contaminants, heavy metals, agrochemicals, radioactive pollutants, etc., can cause various ailments as well as environmental damage. In addition to the existing pollutants, a number of new pollutants are now being produced by developing industries. To address this issue, we require some emerging tools and materials to remove effluents from wastewater. Zeolites are the porous aluminosilicates that have been used for the effective pollutant removal for a long time owing to their extraordinary adsorption and ion-exchange properties, which make them available for the removal of a variety of contaminants. However, zeolite alone shows much less photocatalytic efficiency, therefore, different photoactive materials are being doped with zeolites to enhance their photocatalytic efficiency. The fabrication of zeolite-based composites is emerging due to their powerful results as adsorbents, ion-exchangers, and additional benefits as good photocatalysts. This review highlights the types, synthesis and removal mechanisms of zeolite-based materials for wastewater treatment with the basic knowledge about zeolites and wastewater along with the research gaps, which gives a quality background of worldwide research on this topic for future developments.

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“…Under the conditions of adsorption time 360 min, temperature 25 • C, and adsorbent dosage 0.25 g, the variation of the removal rate of kaolin-organic bentonite, for 50 mg/L rhodamine B with pH value, is shown in Figure 8, where the pH value varies from 2.0 to 11.8. The results show that the adsorption for rhodamine B, by kaolin-organic bentonite, is closely related to pH [22,31]. When the pH value increases from 2.0 to 11.8, the adsorption capacity of kaolin-organic bentonite, for rhodamine B, first increases to the maximum value and then decreases.…”

Section: Effects Of Adsorbent Dosage and Ph On Removal Of Rhodamine B...mentioning

confidence: 99%

Adsorption of Rhodamine B from Simulated Waste Water onto Kaolin-Bentonite Composites

Chai

et al. 2022

Materials

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Organic dye rhodamine B is one of the common organic pollutants in the water and soil environment. This study investigated the feasibility of removing rhodamine B from an aqueous solution through adsorption by kaolin, kaolin-sodium bentonite, and kaolin-organic bentonite. Batch adsorption test results showed that the maximum adsorption quantities of kaolin, kaolin-sodium bentonite, and kaolin-organic bentonite were 7.76 mg/g, 11.26 mg/g, and 12.68 mg/g, respectively, implying that the addition of bentonite to kaolin can effectively improve its adsorption capacity for rhodamine B. Moreover, the Langmuir isotherm model is suitable to describe the adsorption of rhodamine B by kaolin and kaolin-sodium bentonite, while it is preferable to use the Freundlich isotherm model in the case of kaolin-organic bentonite. The adsorption kinetic characteristics of rhodamine B, by these three adsorbents, are suitable to be described with a pseudo-second order kinetic model. Furthermore, the characteristics of the above three adsorbents were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The above results indicated that kaolin and organic bentonite can be used to design efficient adsorbents for organic pollutants similar to rhodamine B.

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Titanium oxide bonded Zeolite and Bentonite composites for adsorptive removal of phosphate

Cited by 12 publications

References 79 publications

Polymer-based nanocomposite adsorbents for resource recovery from wastewater

Polymer-based nanocomposite adsorbents for resource recovery from wastewater

Comprehensive Review on Zeolite-Based Nanocomposites for Treatment of Effluents from Wastewater

Adsorption of Rhodamine B from Simulated Waste Water onto Kaolin-Bentonite Composites

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